【摘要】 进行了某复杂体形超高层建筑顺风向、横风向及扭转风致振动时程分析,用每层质量集中于楼板并视之为刚片的高层建筑层间结构模型代替精细有限元模型。计算结果显示结构位移响应以1阶模态响应为主,该模型代替精确有限元模型能够满足工程计算需要;对于质量中心和刚度中心重合的结构,扭转加速度响应在合加速度响应中占有的比例较小。更多还原

【Abstract】 Along-wind,across-wind and torsional wind-induced vibration analysis of the super high-rise building with particular shape is done.Simplified model in which quality of each story has been concentrated into floor that is treated as rigid slab is used to substitute for precise finite element model.Result turns out that displacement response of the structure is mostly focused on the first order frequency in frequency field.Torsional acceleration response only takes a small part in the composition of acceleration response on account of overlap of quality center and stiffness center.更多还原